Spiral wing shaft for mixers



FIG. 1 is a front view of a spiral wing shaft for mixers showing our new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a cross-sectional view taken along line 7—7 in FIG. 1; and,

FIG. 8 is a cross-sectional view taken along line 8—8 in FIG. 1. 

The ornamental design for a spiral wing shaft for mixers, as shown and described. 